<script setup>
import { ref } from 'vue'
import { User, Lock } from '@element-plus/icons-vue'
import appStore from '@/store'
import router from '@/router'

//导入用户仓库
const { setToken } = appStore.useUser

//导入登录api
import loginApi from '@/service/api/login/login'
const userLoginService = loginApi.login

const login = async () => {
  //使用api获取信息
  await form.value.validate()
  try {
    const res = await userLoginService(formModel.value)
    //传入注册表单内容，获取token
    if (res.code === 71101) {
      ElMessage.error(res.msg)
    }
    if (res.code === 0) {
      ElMessage.success('登录成功')
      //把token存在仓库
      setToken(res.data)
      //查看是否存入成功
      await router.push('/')
    }
  } catch (err) {
    console.log(err)
  }
}

//const isRegister = ref(false)

const form = ref()

//整个用于提交的数据对象
const formModel = ref({
  username: '',
  password: ''
  //repassword: ''
})

//整个表单校验规则
//1.非空校验
//2.长度校验
//3.正则校验 pattern
//4.自定义校验 validator => (rule value callback)
const rules = {
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' }, //最后一句是指失焦时校验,change是改变校验
    { min: 5, max: 10, message: '用户名必须是 5-10位 的字符', trigger: 'blur' } //长度校验
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    {
      //正则校验
      pattern: /^\S{6,15}$/,
      message: '密码必须是6-15位非空字符',
      trigger: 'blur'
    }
  ]
  // repassword: [
  //   { required: true, message: '请输入用户名', trigger: 'blur' },
  //   {
  //     //正则校验
  //     pattern: /^\S{6,15}$/,
  //     message: '密码必须是6-15位非空字符',
  //     trigger: 'blur'
  //   },
  //   {
  //     validator: (rule, value, callback) => {
  //       //判断输入密码与上次是否一致
  //       if (value !== formModel.value.password) {
  //         callback(new Error('俩次输入密码不一致'))
  //       } else {
  //         callback() //校验成功也需要callback
  //       }
  //     },
  //     trigger: 'blur'
  //   }
  // ]
}

// const register = async () => {
//   //表单预校验，点击注册
//   await form.value.validate()
//   try {
//     //传入注册表单内容，获取回调
//     await userRegisterService(formModel.value)
//   } catch (err) {
//     console.log(err)
//   }
//   ElMessage.success('注册成功')
//   isRegister.value = false
// }
//切换时重置表单,监控isRegister
// watch(isRegister, () => {
//   formModel.value = {
//     username: '',
//     password: '',
//     repassword: ''
//   }
// })
</script>

<template>
  <!-- 
    1.结构相关
        el-row表示一行，一行分成24份
        el-col表示列
        (1):span='12' 表示在一行中，占12份（50%）
        (2):pan='6'   表示在一行中，占6份（25%）
        (3):offset="3"  代表在一行中，左侧margin份数

        el-form 整个表单组件
        el-form-item 表单的一行（一个表单域）
        el-input 表单元素（输入框） 
    2.校验相关
    （1）el-from => :model ="ruleFrom",绑定整个表单的数据对象       
    （2）el-from => :rules = "rules"，绑定rules的规则对象
    (3)表单元素 => v-model = "ruleFrom.xxx"给表单元素，绑定from的子属性
    （4）el-item => prop配置生效的是哪个校验规则（和rules中的字段要对应）
     -->
  <el-row class="login-page">
    <el-col :span="6" :offset="9" class="form">
      <!-- 注册相关表单 -->
      <!-- <el-form
        :model="formModel"
        :rules="rules"
        ref="form"
        size="large"
        autocomplete="off"
        v-if="isRegister"
      >
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input
            v-model="formModel.username"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="formModel.password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
          <el-input
            v-model="formModel.repassword"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入再次密码"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button @click="register" class="button" type="primary" auto-insert-space>
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = false"> ← 返回 </el-link>
        </el-form-item>
      </el-form> -->
      <!-- 登陆相关表单 -->
      <el-form ref="form" :model="formModel" :rules="rules" size="large" autocomplete="off">
        <!-- v-else -->
        <el-form-item class="title">
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="username" class="input">
          <el-input
            v-model="formModel.username"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password" class="input">
          <el-input
            v-model="formModel.password"
            name="password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <!-- <el-form-item class="flex">
          <div class="flex">
            <el-checkbox>记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item> -->
        <el-form-item>
          <el-button @click="login" class="button" type="primary" auto-insert-space>登录</el-button>
        </el-form-item>
        <!-- <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = true"> 注册 → </el-link>
        </el-form-item> -->
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
.login-page {
  background-image: url(@/assets/background-Img.jpg);
  background-size: cover;
  background-position: top left;
  background-size: px;
  height: 100vh;
  background-color: #fff;
  display: flex;
  .form {
    margin-top: 25vh;
    height: 40%;
    width: 50%;
    background-color: #fff;
    display: flex;
    justify-content: center;
    user-select: none;
    border-radius: 15px;
    .title {
      margin: 0 auto;
      margin-top: 20px;
    }

    .input {
      justify-content: center;
    }

    .button {
      width: 100%;
      justify-content: center;
    }
    .flex {
      width: 50%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>
